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Methylxanthines are chemical compounds which are derivatives of xanthine with one or more methyl groups, including: One methyl group: 1-Methylxanthine;
Xanthine (/ ˈ z æ n θ iː n / or / ˈ z æ n θ aɪ n /, from Ancient Greek ξανθός xanthós ' yellow ' for its yellowish-white appearance; archaically xanthic acid; systematic name 3,7-dihydropurine-2,6-dione) is a purine base found in most human body tissues and fluids, as well as in other organisms. [2]
7-Methylxanthine (7-MX), also known as heteroxanthine, is an active metabolite of caffeine (1,3,7-trimethylxanthine) and theobromine (3,7-dimethylxanthine). [ 1 ] [ 2 ] It is a non-selective antagonist of the adenosine receptors .
IBMX (3-isobutyl-1-methylxanthine), like other methylxanthine derivatives, is both a: competitive non-selective phosphodiesterase inhibitor [1] which raises intracellular cAMP, activates PKA, inhibits TNFα [2] [3] and leukotriene [4] synthesis, and reduces inflammation and innate immunity, [4] and; nonselective adenosine receptor antagonist. [5]
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Paraxanthine is the primary metabolite of caffeine in humans and other animals, such as mice. [3] Shortly after ingestion, roughly 84% of caffeine is metabolized into paraxanthine by hepatic cytochrome P450 , which removes a methyl group from the N3 position of caffeine.
Within this kingdom, there are about 14,000 species of mushrooms, with the most popular ones in the United States being portobello, shiitake, button (also known as white button or champignon ...